Mail collection device



FIG. 1 is a left-perspective view of a mail collection device showing our new design;

FIG. 2 is a front view thereof, the rear of the device not being visible during its intended use;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The portions depicted in dashed lines are environment and form no part of the claimed design. 

The ornamental design for the mail collection device, as shown and described. 